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A modal analysis based on reactive power compensation on 6-bus Oman electrical grid

Al Mamari, Adnan Saif and Toha, Siti Fauziah and Ahmad, Salmiah and Al Mamari, Ali Salim (2021) A modal analysis based on reactive power compensation on 6-bus Oman electrical grid. International Journal of Power Electronics and Drive System (IJPEDS), 12 (2). pp. 757-764. ISSN 2088-8694

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This paper covers the modal analysis application (MATLAB 2019a) for improving the voltage profiles by optimum positioning of the capacitor banks for 6-bus Oman Electrical System because the Oman electricity Transmission Company (OETC) is suffering of drop voltage in these 6 buses especially during summer season as a peak period. The Newton-Raphson (N-R) method will help to determine the required reactive power for each load bus and as well the ideal position or point of capacitors. The process aims to maintain the Q-V relations of the electrical grid by correlating the lowest Eigen-values to related Eigen-vectors in obtained Jacobian matrix. It depends on the Eigen-values, if they are positive then the system’s voltage is stable otherwise it is not stable. In a stable system, the potential voltage collapse could be anticipated by checking the participation factors for a group of minimal positive Eigen-values. In general, the critical weak bus is associated with lower Eigen-values. Electrical system collapse is attributable to the weakest bus in the network and it could be avoided by determining the weak buses and providing capacitor banks at suitable locations which will lead to improve the voltage stability margin.

Item Type: Article (Journal)
Additional Information: 4680/90086
Uncontrolled Keywords: Jacobian matrix Load flow algorithm Newton-Raphson Reactive power compensation Voltage stability
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK4001 Applications of electric power
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User: Dr. Siti Fauziah Toha
Date Deposited: 10 Jun 2021 19:06
Last Modified: 10 Jun 2021 19:06
URI: http://irep.iium.edu.my/id/eprint/90086

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